Hydrocarbon motor



June 9, 1925, 1,540,966

- J. G, VINCENT HYDROCARBON MOTOR Filed June 50, 192.0

vention wi Patented June 9, 1925.

UNITED STATES PATENT OFFICE.

JESSE G. VINCENT, OF DETROIT, MICHIGAN, ASSIGNOR T PACKARD MOTOR CAR COM- PANY, OF DETROIT. MICHIGAN, A CORPORATION OF MICHIGAN.

HYDROCARBON MOTOR.

Application filed June 30, 1920. Serial No. 392,975.

To all whom it may concern.

Be it known that I, Jnssn G. VINCENT, a citizen of the United States, and a resident of Detroit, Wayne County, State of Michigan, have invented certain new and useful Improvements in Hydrocarbon Motors, of which the following is a specification.

This invention relates to hydrocarbon motors, and particularly to means for I forming the mixture therefor and delivering it thereto.

In the use of combustion devices for heating the mixture passing to the motor, where the mixture for the devicesis taken from the carburetor, if the action of the carburetor is such that the mixture produced by it becomes rich when the motor idles for a short time, as is the case with some carburetors, and with most carburetors under certain adjustments, the mixture fed to the combustion devices becomes so rich that irregular action occurs and sometimes fouling of the combustion chamber results. The increased richness of the mixture -would not be so serious a matter in the idling of the motor if the combustion device operated satisfactorily with that mixture, because in that case the heat from the combustion device would considerably aid in vaporizing the heavy mixture and thus facilitate distribution to the cylinders.

One of the objects of the present invention is to provide a construction of motorintake conduit, carburetor, and combustion device and connections which will assist in keeping the combustion device supplied with a good burning mixture even though the carburetor may load or collect condensed gasoline in its air chambers and'thereby affect the richness of the mixture.

Another object of the invention is to provide means for withdrawing condensed fuel from a part of the carburetor where it may collect and carry the fuel around the combustion device and discharge it into the motor intake conduit.

Another object of the invention is toprovide means for supplying from "a single carburetor,- suitable mixture for a combustion device and a somewhat richer mixture for the motor.

Other ob'ects and advantages of the inappear from the following description taken in,.connection with the drawing which forms a part of this specification, and in which the figure is a vertical sectional view, with parts in elevation, of a carburetor and combustion device and adjacent parts of the motor, built in accordance with this invention.

Referring to the drawing, represents a cylinder block, which may compriseone or more cylinders, of a hydrocarbon motor, and 11 is a passage or conduit for carrying the combustlble mixture to the cylinders through the intake valves. 12 is a continuation of the intake conduit 11 and is'shown as formed in a casting 13.which may be connected to the cylinder block 10 as by bolts 14. The casting 13 forms an elbow, in the horizontal part of which is the con duit 12 and in the vertical part of which 1s a conduit or chamber 15 which is shown as forming the mixing chamber of a carburetor. Suitably arranged in the intake conduit 1112 is a throttle valve 16 which may be opened and closed by the operator .ing to the motor. This device comprises a combustion chamber 25 shown as forming a partial jacket on the elbow,'a spark plug 26 for igniting the mixture-in the chamber, an outlet passage 27 communicating with theintake conduit of the motor beyond the throttle valve 16, so that the combustion chamber is always subject to the suction of the motor, and an intake conduit 28 having its inlet opening or port 29 in the mixing chamber 15 so that the combustion device will withdraw its mixture from the carburetor. The intake conduit 28 includes a small inlet passage 30 in a plug 31 and a screen 32 assists in breaking up the mixture as it passes into the combustion chamber. A glass window 33 is also provided for observing the burning of the mlxture in the chamber.

From the above description, and without the additional means which is about to be described, it will be seen that whatever mixture is supplied to the motor by the carburetor, will also be su plied to the combusent invention overcomes this by providing means for withdrawing the fuel collecting in the passage 21 and carrying it around the combustion device to the motor intake conduit be 0nd the throttle valve 16 so that while the motor may be supplied with a slightly richer mixture during such idling time, yet the combustion device will receive the normal mixture supplied by the carburetor and it will, therefore, functionin.

the usual way and the hot burnt gas passing from it to the motor intake conduit through the passage 27 will greatly assist in vaporizing the heavy mixture and thereby assist the distribution of the mixture to the cylinders of the motor. This means, in the form shown, comprises a suction pipe or conduit extending from thebottom of the passage 21 to the motor intake conduit beyond the throttle valve. 34 is the pipe and it connects at its lower end with a channel 35 formed in the carburetor casting and a passage 36 communicating with a depression or gutter 37 formed in the lowest part of the air passa e21. The passage 36 is preferably smal er than the interior of the pipe 34 and channel 35 so that a relatively high velocity results at the entrance to thereby quickly draw the surrounding gasoline into the suction pipe. The upper end of the pipe 34: is shown connected with the intake conduit 12 at 38 so that it is always subject' .to the suction of the motor, and, therefore, when the throttle valve 16 is nearly closed,

as for idling, there Will be a -high suction in this pipe 34 and whatever particles of fuel may collect in the depression 37 will be carried through this pipe around the combustion device and directly to the motor intake conduit. This will slightly increase the richness of the mixture passing to the motor, but the operation of the, combustion device will not be interfered with because of the less-rich mixture it will receive, and

1 In a hydrocarbon motor, the combin'a-- tion with the intake conduit'thereof, a carburetor connected to said" conduit, and a suction operated combustion device connected to draw its mixture from said car-' buretor and dischar e into said conduit, of a suction pipe exten ing from a art of said carburetor where heavy fuel col ects during idling of the motor,'to said conduit.

2. In a hydrocarbon motor, the combination with the intake conduit thereof, a carburetor connected to said conduit and having main and auxiliary air passages, and a suction operated combustion device connected to draw its mixture from said carburetor and discharge into saidconduit of a suction pipe extending from,the bottom of said auxlliary air passage around said combustion device to said intake conduit.

3. In a hydrocarbon motor, the combination with the intake conduit thereof, a car-- buretor connected to saidconduit, and a combustion device having its intake for mixture connected to saidcarburetor, of a suction conduit extending from a low part of said carburetor around the intake of said combustion device to said intake conduit.

4. In a hydrocarbon motor, the combination with the intake conduit thereof, a carburetor connected to said conduit, and a combustion device having its intake for mixture connected to said carburetor, of a suction conduit extending from a part of said carburetor where heavy fuel collects during idling, around the intake of said combustion device, to said intake conduit.

5. In a hydrocarbon motor, the combination with the intake conduit and a throttle valve therein, a carburetor connected to said conduit, and a combustion device connected to draw its mixture from said carburetor before the mixture reaches. said throttle valve, of means for carrying any heavy particles of fuel collecting in the carburetor around the combustion device to the intake conduit be 0nd the throttle valve/ 6. In a ydrocarbon motor, "the combina tion with a carburetor having an extension forming a motor intake conduit, of a com bustion device having its intake connected to said carburetor, and a suction conduit extending from said carburetor to a part oi said intake conduit beyond the intake 01 said combustion device.

7. In a hydrocarbon motor, the combination with a carburetor connected thereto, and

a combustion heater device adapted to withdraw mixture from the carburetor, of means whereby said carburetor supplies a suitable mixture to said combustion device and a richer mixture to the motor. 10

In testimony whereofn I aflix my signa ture.

JESSE G. VINCENT. 

